Here is the full list of all 20 My Loved Heart achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
18 Achievement
20 Achievement
19 Achievement
17 Achievement
16 Achievement
15 Achievement
14 Achievement
13 Achievement
12 Achievement
11 Achievement
10 Achievement
9 Achievement
7 Achievement
8 Achievement
6 Achievement
5 Achievement
4 Achievement
3 Achievement
1 Achievement
2 Achievement